|Photo: Ajaya Dixit|
On 1 September, I visited Paschim Kusaha, where the Kosi Breach occurred on 18 August. In my 30 years of working on water-related issues, I have not witnessed a sight of the kind that greeted me. An almost two-km stretch of Kosi’s eastern embankment, 12 km north of the Kosi Barrage, had been washed away. The bulk of the Kosi’s flow was making its way out through this gap, hurtling towards north Bihar along what used to be one of the river’s old courses. The section at the breach resembled a monsoon-augmented river in downstream Bangladesh. Local fishermen told us that their bamboo poles were not touching the bottom at this site, where the former embankment would have been. This implied that the depth at the breached stretch would be anything above 10 meters.
Though the embankment was breached during a monsoon month, the disaster was manmade, and could have been averted. A river that was not even in spate had gushed through a vulnerable section that had not seen maintenance. According to the locals, the threat of breach had become serious as early as 5 August, and they had raised the alarm. But there was no action.
During the early 20th century, some British engineers had argued that embankments were not an appropriate technology in a region where rivers carry high sediment loads. The silt would be deposited within the levees, making the riverbed higher than the floodplain. At Paschim Kusaha village, a 1996 contour map prepared by the Nepal government shows that the riverbed was almost four meters higher than the land outside the embankment, due to sedimentation.
As elsewhere in the Kosi embankments downstream, the maintenance was inadequate, corruption rife and there was no flood-warning mechanism in place. Given the scale of the disaster, the humanitarian response has been grossly inadequate. Overall, the breach is a failure of human agency and the conventional paradigm of flood control.
~ Ajaya Dixit is a Kathmandu-based engineer and water resource analyst.
Romila Thapar addresses invitees at the
Southasian relaunch of Himal Southasian,
IIC, New Delhi, January 2013.
China, Southasia and India
On May 19 2013, newly appointed Chinese Premier Li Keqiang arrived in New Delhi for a series of meetings with Indian Prime Minister Manmohan Singh. The visit is Keqiang's first outside of China since assuming power in March.
From our archive:
Purna Basnet discusses Chinese engagement in Nepal vis-a-vis security issues in Tibet and broader geo-strategic plans in Southasia (April 2011).
Fatima Chowdury relates the story of Calcutta's Indian Chinese community through the lens of political and economic upheavals in Southasia and China (May 2009).
Simon Long notes the importance of the Sino-Indian relationship for the rest of Southasia (September 2006).
J.N Dixit ruminates on the strategic concerns of the 'Middle Kingdom' in the wake of India's 1998 nuclear tests (June 1998).